I'm torn when it comes to Lagrange Point. It obviously sounds amazing for the NES and the songs are all great. The intro song is my favorite:
On the other hand, to me, it just doesn't sound quite "NES-y" enough. For example, Gimmick, which I feel is the highest point in NES game music, uses an expansion chip, yet still retains that distinct NES sound. Lagrange is all FM and no pulse, triangle, etc. - and missing that, it sounds more like the Genesis. Anyway, just my 2 cents.
Bottom line: the soundtrack rules, but if I saw it on a top 10 list of NES music, I would feel like it's out of place.